3. Which tile should be used to solve the following problem? Ca(OH)2 (aq) + 2HCl (aq) CaCl2 (aq) + 2H20 (1) How many moles of water (H20) would be produced from the reaction of 3 25 moles of hydrochloric acid (HCI) reacting with excess calcium hydroxide (Ca(OH)2)? 3.25 mol HCI А 00 B C D 2 mol HCI 2 mol H20 2 mol HCI 1 mol Cacha 2 mol H20 2 mol HCI 1 mol cace 2 mol HCI A Tile Å B. Tile B (C. Tile C G. D. Tile D

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A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]